I did the Morgan Stanley online test. The test is the Aon cut-e test. At the beginning of the test, there is a situational judgment test. You have to reply to 'emails' asking you for advice or to do something. Then there is a verbal and numerical test. During each test, you have 6 min to determine whether 15-18 statements are true, false, or cannot be answered (this means that you have to move quickly). The statements are answered using the information provided in 6 panels. Then there is a logical (or induction?) test where you have to find the element that does not fit the pattern.
JobTestPrep offers a few free questions to help you practise. You'll also have the opportunity to familiarise yourself with the format of the test using the practice questions provided before each test.
There is no interview.